Improper Privilege Management Affecting systemd-libs package, versions <0:239-29.0.1.el8


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.91% (56th percentile)

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  • Snyk IDSNYK-ORACLE8-SYSTEMDLIBS-2556139
  • published10 Apr 2022
  • disclosed26 Apr 2019

Introduced: 26 Apr 2019

CVE-2019-3843  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade Oracle:8 systemd-libs to version 0:239-29.0.1.el8 or higher.
This issue was patched in ELSA-2020-1794.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-libs package and not the systemd-libs package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

It was discovered that a systemd service that uses DynamicUser property can create a SUID/SGID binary that would be allowed to run as the transient service UID/GID even after the service is terminated. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the UID/GID will be recycled.

CVSS Base Scores

version 3.1